you have a working dedicated server.
enough planets on your maniaplanet account (it's an insurance, you'll get it back if you set it back to standard, except if Nadeo have revoked it because of abuse) to promote the server as a ladder server.
use the last dedicated server release that you can find in the maniaplanet forums: http://forum.maniaplanet.com/viewtopic. ... 61&t=12494 (last post of this thread).

How to set up a dedicated server as a Ladder server?

go on the Player Page, Ladder servers section, read the rules of various kind of ladder servers, pay attention to first select the game title, enter dedicated login, select the server limits, and enter your Validation code. Save the changes.

in the dedicated server configuration file :

- set <ladder_mode> to forced
- set in <ladder_serverlimit_min> the minimum ladder value for the server type.
- set in <ladder_serverlimit_max> the maximum ladder value for the server type.
- empty <password> and <password_spectator>.
- set <max_players> to fit the server type rules.
- set <max_spectators> to fit the server type rules.
- set <use_changing_validation_seed> to True if needed in the server type rules.
- set <referee_validation_mode> to 1

configure your dedicated matchsettings to fit the rules of the server type :